Fig. 2

Patient, male, 68 years old, had a history of right femoral neck fracture with parallel femoral head replacement. a 1 day after the fall, he was admitted to the hospital. The left femur intertrochanteric fracture, the left lower extremity was shortened by 3 cm. b The left side DHS fixation was performed 5 days after admission, and the fracture reduction was slightly worse. c 142 days after DHS fixation, left hip varus deformity, limb shortening, DNS screw cutting, nail tail protruding femoral head